Updated at 9:53 a.m.
U.S. Park Police said the George Washington Parkway has now reopened.
Updated 9:27 a.m.
A vehicle has been towed away, but authorities are saying they are waiting for a tractor-trailer to be moved from the scene before the parkway can be reopened.
Updated at 8:40 a.m.
The northbound and southbound lanes of the George Washington Parkway remain closed, according to the U.S. Park Police after an earlier accident. Officials said they are working to get the vehicles involved in the accident out of the roadway.
Updated at 7:26 a.m.
Authorities said the northbound and southbound lanes of the George Washington Parkway are closed at Wellington Road in the Fort Hunt area of Fairfax County.
The lanes are closed because of an accident that involved two cars.
It is not known at this time when the roads will reopen. Drivers are advised to use alternative routes.